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Wiktionary
automated teller machine

n. (context banking English) A device that provides bank customers with cash withdrawal and other services without the need for a bank teller.

WordNet
automated teller machine

n. an unattended machine (outside some banks) that dispenses money when a personal coded card is used [syn: cash machine, cash dispenser, automatic teller machine, automated teller, automatic teller, ATM]

Usage examples of "automated teller machine".

Dana wrote out a deposit slip, put the cash and the slip in an envelope, and deposited the envelope in the automated teller machine.